Ambassador Andrey Kelin said Moscow would treat NATO soldiers on the ground as a security threat

Russia will treat the deployment of NATO troops to Ukraine as a threat to its security, Russian Ambassador to the UK Andrey Kelin has said.

The diplomat rejected plans by the so-called Coalition of the Willing to send "peacekeepers" to Ukraine after a ceasefire is reached with Russia.

"We will not allow [the deployment] of any NATO member state's troops on the territory of Ukraine because it will be another line of attack against Russia," Kelin said in an interview with Channel 4 News aired on Wednesday. "We understand that Ukraine wants guarantees. We also need guarantees," he added.

The diplomat said the presence of foreign troops on Ukrainian soil would be unacceptable. Asked about a Financial Times report that Ukraine and its European backers had agreed to deploy Western troops in the event of a violation of a potential ceasefire, Kelin said such plans were "dead."

Kelin reiterated that Russia is seeking a comprehensive peace deal with Ukraine rather than an immediate, unconditional ceasefire. He added that normalization of ties between Russia and the West, as well as trust-building measures, would help prevent further conflicts.

"There are positive and negative security guarantees. If you send troops, this is one thing. But many agreements that end conflicts [are based] on political guarantees, legal guarantees. The best would be a good relationship between the United States and Russia, between European countries and Russia, including London," Kelin said.

Russian President Vladimir Putin has cited Ukraine's military cooperation with NATO and its aspirations to join the US-led bloc as among the key causes of the conflict. Moscow has warned that it would treat any Western troops in Ukraine as legitimate military targets.